CVE-2021-1723: ASP.NET Core and Visual Studio Denial of Service Vulnerability

Overview

Severity

High (CVSS 7.5)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

Category

Denial of Service

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2021-Jan

Released

2021-01-12

Last Updated

2021-01-12

EPSS Score

4.58% (percentile: 89.2%)

Affected Products (5)

Developer Tools

• ASP.NET Core 3.1
• ASP.NET Core 5.0
• Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3)
• Microsoft Visual Studio 2019 version 16.8
• Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6)

Security Updates (5)

• Release Notes
• Release Notes
• Release Notes
• Release Notes
• Release Notes

Revision History

• 2021-01-12: Information published.
• 2021-01-12: Removed Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) and Microsoft Visual Studio 2019 version 16.0 from the Security Updates table because these versions are not affected by this vulnerability.